At 10:32 18.2.1998 -0500, Beth Green wrote: >I'm a new MicroWorlds user trying to get started with a Gr 3 class. >I've been asking them to write their names using the turtle and logo. >This question is undoubtedly a beginner's but if they make a mistake, >how can they eliminate from the code and the graphic just the last move >that was wrong? In other words, how can they fix their mistake without >starting again? > > Beth Green Beth, When I read your mail, I explained it to my wife Monika. She is teaching 10 to 14 years old pupils using Logo. In our country it is grade 5 to 8. I do not know how old pupils are Gr 3, but maybe you can think about the methods my wife reccommends. In the Logo she is using (Comenius Logo), there is a History window which stores all the commands written to the Text screen (let's say that it is an equivalent of the MW command center) and executed . The pupil can then show the Histroy window, copy a part of its content to the clipboard and paste it to the Text screen - this executes all the commands once again. This is not a direct solution of the problem, but it helps a lot when a mistake occurs and the pupil has to redo things once more. In MicroWorlds the history of commands is directly accessible in the Command center, just there is no simple mean to repeat a big part of them just with one click or push (at least I do not know how). I tried to implement a small project which would read Logo commands, execute them (using the RUN primitive) and store them internally, so that it can delete the last line and re-execute the stored command if needed. But it seems to me (at least according to the Help comming with the trial version of MW2) that there are no textbox-oriented input commands (like readlist or readword) in MW2. So finally we tried (in MicroWorlds 2 for Win95) this: Create a textbox named TEXT1 on the left side of the page, which is about 15 characters wide and its height is nearly equal to the height of the whole page. Create a button (Do It: once) somewhere near the textbox and put these commands to it: cg run text1 Then your pupils can write their commands to the textbox and whenever they push the button their instructions are executed. If they do not like the result, they can delete some line(s) in the textbox, add something and try again. Maybe this goes a little bit beyond using direct commands towards creating procedures, but maybe it can help to you. Or somebody can implement the project which reads, executes and stores commands in MW. Regards Peter Tomcsanyi My favourite Logo: http://logo.die.fmph.uniba.sk/logo/ http://www.logo.com/catalogue/titles/superlogo/index.html --------------------------------------------------------------- Please post messages to the Logo forum to logo-l@gsn.org. Mail questions about the list administration to logofdn@gsn.org. To unsubscribe send unsubscribe logo-l to majordomo@gsn.org.
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